Citizen’s concept of atomic timekeeping flourished through the Promaster range, the Titanium models soon becoming a favorite to technocrats. It received a world wide acclaim as much as Eco-Drive. The Promaster Titanium targeted the crowd that goes by split-second decisions, its radio controlled accuracy soon became a much-desired phenomenon among travellers, including aviators and balloonists, worldwide. The Citizen Promaster Eco Drive Titanium Radio Controlled men’s watch has since held ground as ultimate instruments when high speed and long distances merge. A great advancement in timepiece technology and experiments with exotic materials. They still continue to inspire awe.

As evident from the name, these are entirely made of titanium except for the bezel rings, which is stainless steel and run by the eco-drive system, but this time it’s bit more complicated than being just light driven or a calender set to run flawlessly over decades. Every Citizen Promaster Eco Drive Titanium Radio Controlled Men’s watch packs in atomic timekeeping for maximum accuracy.

The atomic clock sync occurs as the watch’s receiver catches radio signals from atomic clocks in Europe, USA, Japan and China. It also works for other Asian countries; however, the closer to China and Japan, better are your signals. Even when you don’t get any, the watch doesn’t lag or run ahead beyond a few seconds a month.

Functions and features are almost similar for the Citizen Aqualand Diver Watch as it is with other radio-controlled Promasters. Common features include a 24h dial, days/week, a chronograph, an alarm and dual/multiple time zones; often with a precise slide ruler turned by an additional crown. Needless saying the slide rule makes a lot of measurements easy; that can range from fuel consumption to ground speed calculations, from distance conversions to a lot more things. If you love pilot's watches and gadgets but getting a hard time making a choice, it's going to be a perfect match.

The first impression a Citizen Eco-Drive Multifunction makes is with its lightweight construction. There’s precision even there; you might feel it’s a precise, Japanese, measuring instrument. Changing functions make the hands move to and fro, automatically and adjust according to the setting you choose. It’s the CPU inside that’s responsible; it will keep counting the time no matter what else you do with the watch. It controls the movement of the motors inside, which in turn drive the hands and wheels. It seems as futuristic as owning a miniature, personal robot!

The most interesting feature is perhaps the fixed case back, which is simply because you have no need to remove it for atleast 50 years or so. Get one if you are apprehending zombie apocalypses in the future, it’s tough enough to bust a few zombie nuts.